Joseph m



(No Model.) K

. J. M. BING.

f y VBNTILATOR GAP.

No. 302,091. y A,Patented July 15, 1884.

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UNITED STATES 'PATENT e GEEICE.

JOsErH M. nine, OE MiLLviLLHnEwJERsEY, Assienon To JOHN LOPEE,

Y `jOEsAME rLAcE.- 'A

vENTiLAToR-CAP.

SPECIFICATION forming part'of Letters Patent No. 302,091,

dated Juiy 15,'1884.

Application led February 6, 1884. (No model.)

To all whom it may concern.-

Be it known that I, JosErH M. BING, of Millville, countyof Cumberland, and State of New Jersey, -have invented an Improvement in Ventilator-Gaps, of which the following is a specification. i

My invention has reference to ventilators and smoke-stack caps; and it consists in certain improvements by which a suction is produced, increasing the draft when the wind strikes the said ventilator or chimney-cap'in any direction, as fully set forth in the following specification, and shown in the accompanying drawings, which form part thereof.

The object of my invention is to provide a ventilator or chimney with a suitable cap which shall prevent the wind blowing down and the rain from entering the same, thesaid cap being so constructed that no matter in what direction the wind be blowing it shall always tend to create a draft in the proper direction.

In the drawings, Figure l is asectional el e vation of my improved ventilator or chimneycap, and Fig. 2 is a plan view of same.

A is the stack or ventilator proper. Its upper edge is provided with an annular flange, B, preferably flaring upward toa small extent, and which flange has upon its outer periphery a downwardly-extending flange, C. Covering the said parts is the conical cap D, which is of larger diameter than the flange B, and upon its periphery it is provided with a downwardly-proj ecting flange, E, preferably of less depth than the flange G. This conical cap D is provided near itsv periphery with a series.

of holes, F, which open down between the flanges C and-E. The cap D is supported upon part B by pieces d. The parts B, C, D, and E in reality constitute the ventilator or chimney-cap, and may,` if desired, be made separate from tube A and secured thereto by tubular piece b. If the air ,blow down, up, horizontally, or obliquely, there will always be a suction from pipe A up through holes F. This cap is adapted to ordinary ventilators for buildings, or for brick chimneys, or for steamboat-chimneys-'in fact it may be applied to allv chimneys requiring a draft. In the case of the brick chimney a bottomless box, G, is used, which box incloses the top ofsaid chimney and' supports the flue A over the smokeoutlet.

VVhiIe I prefer the vconstruction shown, it .may be modified without departing from my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, ist 1. The combination of flue A, flanges B, C, and E, and cap D, having apertures F opening'opposite the annular space formed between the flanges C and E, thereby forming a clear passage-way for theair, substantially as and for the purpose specified.

2. The combination of flue A, flanges B, C, and E,`and cap D,r having apertures F, the flange B and cap D being conical, and the former being inverted,` substantially as and for the purpose specified.

3. The combination of flue A, flanges C, B, and E, forming avertical annular passage-way, and cap D, having apertures F opening into said vertical annular passage-way, the flange C being deeper than flange E, substantially as and for the purpose specified.

In testimony of which invention I hereunto set my hand. f

JOSEPH hl. RING.

Vitnesses R. M. HUNTER,

FRANCIS S. BROWN. 

